Surface Grinding

See why over 2000 users worldwide have chosen YOSHIKAWA Vertical Rotary Surface Grinders for fast, accurate and repeatable stock removal tasks. We offer a complete line of Vertical Rotary Surface Grinders designed to flat grind a wide variety of optical and crystalline materials to tool room accuracy and surface finish. All bearings and critical components are shielded from abrasive and liquid contaminates. Infinitely variable stepless infeeds eliminates chipping and sub-surface fracturing. These machines are available with work table sizes ranging from 10″ up to 48″ diameter, and can be equipped with a large selection of accessories.

The YOSHIKAWA Vertical Rotary Surface Grinders are available in a wide range of work capacities and equipped with a wide variety of features to suit the user’s flat grinding requirements. Infinitely variable and stepless infeeds are common to all of these machines and result in superior finishes on glass or crystalline materials.

We’ve created a Product Matrix that provides specifications for all of our surface grinding products. For more detailed information on a particular product, please feel free to contact us!

	YGS-10	YGS-16RF	YGS-18RFD	YGS-24	YGS-32	YGS-43	YG-500	YG-1100	YHV-600	HPG-450
Magnetic chuck diameter	ø 250 mm	ø 405 mm	ø 450 mm	ø 600 mm	ø 800 mm	ø 1100 mm	ø 500 mm	ø 1100 mm	ø 250 mm x 600 mm	ø 250 mm x 450 mm (Permanent electromagnetic type)
Maximum movement of spindle	150 mm	200 mm	200 mm	250 mm	350 mm	400 mm	250 mm	400 mm	150 mm	100 mm
Grinding wheel size		ø 254 mm	ø 254 mm Diamond Wheel	ø 355 mm	ø 510 mm	ø 650 mm	ø 355 mm	ø 650 mm (Diamond Wheel)	ø 320 mm (Diamond Wheel)	ø 320 mm (Diamond Wheel)
Spindle speed	2500 rpm	1300 rpm	1300 rpm	1140 rpm	750 rpm	6000 rpm	1140 rpm	1710 rpm	1420 rpm	1420 rpm
Spindle speed								1420 rpm	1710 rpm	1390 rpm
Table Speed	0-30 rpm	12-25 rpm	12-25 rpm	4~24 rpm	3~16 rpm	3~16 rpm	4~24 rpm	3.3~20 rpm		2~18 rpm AC Servo
Feeding Speed	0.017 ~ 0.14 mm/min	0.017 ~ 0.14 mm/min	0.04 ~ 0.30 mm/min	0.03 ~ 0.3 mm/min	0.03 ~ 0.3 mm/min	0.03 ~ 0.3 mm/min	0.03 ~ 0.3 mm/min	0.03 ~ 0.3 mm/min		0.054 ~ 0.27 mm/min 0.003 ~ 0.015 mm/min
Vertical moving speed of spindle				(60hz) 2820 mm/min	(60hz) 2870 mm/min	(60hz) 2500 mm/min			(60hz) 85 ~3 55 mm/min	20 mm ~ 2000 mm AC Servo
Table movement									850 mm	860 mm
Moving speed of table				(60hz) 2820 mm/min	(60hz) 2870 mm/min	(60hz) 2500 mm/min			(60hz) 85 ~3 55 mm/min	20 mm ~ 2000 mm AC Servo
Motor for spindle rotation	2.2 kw – 4 P	3.7 kw – 4 P	7.5 kw – 4 P	11 kw – 6 P	18.5 kw – 10 P	22 kw – 12 P	11 kw – 6P	22 kw – 12 P	5.5 kw – 4 P	5.5 kw – 4 P
Motor for table rotation	0.2 kw – 4 P	0.75 kw – 4 P		0.75 kw – 4 P	1.5 kw – 4 P	1.5 kw – 4 P	0.75 kw – 4 P	2.2 kw – 4 P
Motor for feed	0.25 kw – DC Servo	0.25 kw – DC Servo	0.25 kw – DC Servo	0.03 kw – DC Servo	0.03 kw – DC Servo	0.03 kw – DC Servo	0.03 kw – DC Servo	0.03 kw – DC Servo		0.55 kw – AC Servo
Motor for vertical movement of spindle		2.0 kw – 4 P	2.0 kw – 4 P	0.75 kw – 4 P	1.5 kw – 4 P	1.5 kw – 4 P	5 kw – 4 P	1.5 kw – 6 P
Motor for table movement				0.75 kw – 4 P	1.5 kw – 4 P	2.2 kw – 4 P			4.4 kw – 4 P	0.9 kw – AC Servo
External Coolant pump	0.1 kw – 2 P	0.18 kw – 2 P	0.18 kw – 2 P	0.18 kw – 2 P	0.25 kw – 2 P	0.4 kw – 2 P	0.18 kw – 2 P	0.4 kw – 2 P	0.25 kw – 2 P
Coolant Tank Capacity and Size (W x L x H mm)	50 L 300 x 620 x 300	200 L 600 x 1000 x 400	200 L 600 x 1000 x 400	200 L 600 x 1000 x 400	300 L 750 x 1400 x 400	300 L 750 x 1400 x 400	200 L 600 x 1000 x 400	300 L 750 x 1400 x 400	200 L 500 x 1000 x 420	170 L 800 x 1300 x 400
Power required	1.825 kw	4.87 kw	8.66 kw	13.36 kw	23.28 kw	27.63 kw	12.71 kw	26.13 kw	6.15 kw	11.303 kw
Machine size (Max Length x Depth x Height)	960 x 880 x 1720	960 x 1600 x 1900	960 x 1600 x 1900	1050 x 2350 x 2110	1400 x 3010 x 2500	1500 x 3250 x 2500	2000 x 1050 x 2110	2280 x 1400 x 2500	2400 x 1050 x 2200	3230 x 1200 x 1930
Net Weight	600 kg	1500 kg	1600 kg	3200 kg	8000 kg	10000 kg	300 kg	8500 kg	3000 kg	3500 kg